Portion of a game controller



FIG. 1 is a perspective view of a portion of a game controller showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The broken line showing of the cross-shaped element and its circular boundary and the remainder of the controller is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a game controller, as shown and described. 